Refrigerator construction.



C. H. LEGNARD.

REFRIGERTOR CO APPLLCATION FILED JULY 6,1916.

' fifi?" CERLES H. LEONARD, GF G'Bili) BAPIDS,`1V.CII1G-AN, ASSGNOR T0 GRAND BAP: REFRIGERTOR CO., OF GRAND PFDS, MICHIGAN, A CORPORATION 0F MCHIGAN.

REFRGEEATB CGNSTRUCTOI?.

Specification of Letters Patent.

Far-tenten; Aug. 28,191?.

Application filed July 6, 19.1.6. Serial No. 107,752.

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

rhis invention relates to refrigerator linings of sheet metal and a method of constructing the same from a sheet of metal so that an exceptionally strong and rigid structure is produced with no waste of material in the forming of the same. It is the object and purpose of my invention to produce a substantially L-shaped sheet metal refrigerator lining' formed as a single unit with the minimum of material and of the maximum strength and rigidity. To these. ends l have made my invention, detailed description of `which follows; reference being' had to the accompanying drawing in which:

Figure l is an elevation of the blank from which the major portion of the lining is made and,

Fig. 2 is a perspective View of said lining.

Like reference characters refer to like parts in the views of the drawing.

In the construction of the lining a sheet of metal l is used vand is slit at a point between the sides thereof as indicated at .2 substantially one-half of the length of the sheet. A portion of the metal is eut away as shown in the upper left hand corner in Fig. l and the plate thus formed is bent substantially on the vertical line 3 forming' one vertical side 4 of the lining. it is then bent on the 'line 5 whichextends vertically atA right angles to and from the inner end of the slit 2 heretofore mentioned, there being in this manner formed a partial side i3 parallel to the side 4. rIhre metal is then bent substantially upon the line Y making; the side 8 which is also parallel to the side 4 but spaced a greater distance therefrom than is the side (5. rlhe back 9 which is left after the metal has been bent is substantially i..- shaped the sides 4, (3, and 8 being' integral therewith and projecting forwardly there from. The upper edge of the side 8 and the loweredge of the side 5 lie in the same y,horizontal plane and are connected by a brazing or the like.

plate 10 which in practice is that part of the plate removed at the upper left hand corner .as shown at Fig. l in formingr the lank ii'rom which the lining is made. To complete the lining a top 11 .is secured between the upper edges of sides 4 and 6 and the upper edge of the vertical leg of the L-shaped back 9 and a bottom 12 is secured between the lower edges of sides 4, 8, and the lower edge of the back 9. i The members l0, 1l, and 12 may be fastened in place in any suitable manner such as by soldering, prefer also to bend the forward edges of the sides 4, 6, and 8 inwardly toward each other as shown at 13 though this is not anessential feature and comprises n0 essential part of my invention.

A refrigerator lining thus formed maybe made from sheet metal without waste and at the same time is of exceptional strength and rigidity due to the fact that the side 6 is integral with and bent forward from the back 9 whereby a distortion of the side in a downward direction is a practical impossibility. Sheet metal linings of this character are enameled and in the process of enamelingr subject to intense heat. The construction outlined is one fully capable of sustaining this heat and there is no warping or sagging of the reentrantportion of the L-shape due to the fact that the side 6 is integrally connected with the back. Heretofore it has been customary to construct the bottom, sides and top portions from a continuous sheet of metal not having. any integral connection with the back which is supplied as a separate piece such method and the product formed thereby being defective on account of the lack of inherent strength such as is present in my invention as outlined. I

l. rthe method of coi'istructinr ant-shaped refrigerator lining which consists in providing a rectangular sheet of metal, then slitting it for a portion of its length between the upper and lower side edges thereof and removing a sectionl from the end of the part above said slit, then bending' a side forward the full height 0f the sheet, then bending sides forward from the parts above and below the slit, said side bent from the part above the slit being; bent forward at `the end of said slit, and the side lient from the part below the slit being,l positioned farther from ion lli)

above the elifJ7 und geen providing top and.

bo'om meinbere and securing them in pieceV io complete the lining.

The method of constructing an L-"hnped refrigerator lining which Consiste in provid ing a rectangular sheet 0In metal, then slitting it for e portion of its length between the upper and lower edges 'thereof and. removing a section from the end of the part above said slit., then bending e eide forward.

'glie full heig il; of the slieea, then bef* Par above the slit forward m the. i', of the siii), and the part below zlleslie l Ward Ysubsianiizmliy at the outer emi of slit, and then. Welding u, bottom nml. fewo members in place between the buck im@ Siri es to complete the lining, Substantially :le de scribed.

n testimony whereof I ai'ix my signature. 

